# Comparative Efficacy of Water & Indigo Carmine vs. Water or Air Method on Adenoma Detection Rate (ADR) - a Randomized Controlled Trial (RCT)

> **NCT01607255** · PHASE4 · COMPLETED · sponsor: **VA Office of Research and Development** · enrollment: 480 (actual)

## Conditions studied

- Colorectal Neoplasms

## Interventions

- **DRUG:** Indigo carmine
- **PROCEDURE:** water (exchange) method
- **PROCEDURE:** water (exchange) plus dye method
- **PROCEDURE:** air method

## Key facts

- **NCT ID:** NCT01607255
- **Lead sponsor:** VA Office of Research and Development
- **Sponsor class:** FED
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2013-05-16
- **Primary completion:** 2017-06-30
- **Final completion:** 2017-09-30
- **Target enrollment:** 480 (ACTUAL)
- **Last updated:** 2019-01-15


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01607255

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01607255, "Comparative Efficacy of Water & Indigo Carmine vs. Water or Air Method on Adenoma Detection Rate (ADR) - a Randomized Controlled Trial (RCT)". Retrieved via AI Analytics 2026-05-28 from https://api.ai-analytics.org/clinical/NCT01607255. Licensed CC0.

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